应用正交试验法汽车B柱轻量化设计分析Lightweight Design Analysis of Automobile B-Pillar Based on Orthogonal Test Method
陈满秀;陈德林;
摘要(Abstract)：
B柱是车身重要的承载结构件,对侧面碰撞安全具有重要影响,同时B柱也是轻量化设计的重要单元。根据B柱的结构特点和在车辆侧面碰撞中的结构形态,搭建B柱侧面碰撞仿真分析模型;根据分析结果和零件的可制造性分析,基于正交试验法对B柱的材料和厚度进行设计,并根据乘员的相对位置对激光拼焊的焊缝进行设计;根据侧面碰撞的侵入量和侵入速度对比,选出最优激光拼焊设计方案;基于侧面碰撞分析模型,对轻量化设计前后B柱的安全性进行对比分析。结果可知:随拼焊线向底部移动,危险区域的最大减薄率并不是线性增减,在可选取范围内将焊缝位置确定为距离底端380mm的位置;B柱选择拼焊板结构,下部材料为DP780,厚度为1.8mm,上部材料为DP590,厚度为1.6mm;采用激光拼焊结构的B柱重量减轻23.1%,各位置测量点的侵入量最高减少18.6%(D4位置),满足结构耐撞性的要求。
关键词(KeyWords)： 汽车;B柱;轻量化;正交试验法;模型;碰撞安全
基金项目(Foundation): 广西高等学校提升专业服务产业发展能力项目（GXTSZY048）
作者(Author): 陈满秀;陈德林;
Email:
DOI: 10.19356/j.cnki.1001-3997.2021.03.021
参考文献(References)：
- [1]谭耀武，杨济匡，王四文.轿车B柱耐撞性与轻量化优化设计研究[J].中国机械工程，2010,21(23):2887-2892.(Tan Yao-wu,Yang Ji-kuang,Wang Si-wen.Study on optimal design of B-pillar for crashworthiness and light-weighting[J].China Mechanical Engineering,2010,21(23):2887-2892.）
- [2]Muhr T,Weber J,Theobald A.Economically viable lightweight design concept for a hybrid B-pillar[J].Atz Worldwide,2015,117(3):4-9.
- [3]Yang Z,Qian P,Yang J.Lightweight design of B-pillar with TRB concept considering crashworthiness[C].//International Forum of Automotive Traffic Safety,2011.
- [4]Pan F,Zhu P,Zhang Y.Metamodel-based lightweight design of B-pillar with TWB structure via support vector regression[J].Computers&Structures,2010,88(1):36-44.
- [5]Golman A J,Danelson K A,Miller L E.Injury prediction in a side impact crash using human body model simulation[J].Accident Analysis&Prevention,2014,64(2):1-8.
- [6]刘昌业，莫易敏，梁永彬.基于某微车顶压工况下B柱轻量化优化设计[J].武汉理工大学学报：交通科学与工程版，2018,42(2):181-184.(Liu Chang-ye,Mo Yi-min,Liang Yong-bin.Lightweight optimization design of B-pillar based on the condition of micro-car roof pressure[J].Journal of Wuhan University of Technology:Transportation Science&Engineering,2018,42(2):181-184.）
- [7]叶盛，辛勇.基于拼焊技术的轿车B柱耐撞性及结构优化设计[J].汽车技术，2012,446(11):54-58.(Ye Sheng,Xin Yong.Crashworthiness and structural improvement for B-pillar based on welding technology[J].Automobile Technology,2012,446(11):54-58.）
- [8]高新华，徐有忠，王其东.基于台架试验与模拟的轿车B柱耐撞性与轻量化研究[J].汽车工程，2014(8):957-962.(Gao Xin-hua,Xu You-zhong,Wang Qi-dong.A study on the crashworthiness and lightweighting of B-pillar in a car based on bench test and simulation[J].Automotive Engineering,2014(8):957-962.）
- [9]王登峰，蔡珂芳，张帅.基于激光拼焊技术的汽车B柱结构优化设计[J].北京理工大学学报，2018,38(7):35-41+52.(Wang Deng-feng,Cai Ke-fang,Zhang Shuai.Structure design of automotive B-pillar based on tailor-welded blank technology[J].Transactions of Beijing Institute of Technology,2018,38(7):35-41+52.）
- [10]鲁后国，李铁柱，阚洪贵.基于仿真分析的汽车B柱侧面碰撞性能设计[J].机械设计与制造，2017(7):220-222.(Lu Hou-guo,Li Tie-zhu,Kan Hong-qi.Performance improvement of the automotive body B-pillar based on simulation analysis[J].Machinery Design&Manufacture,2017(7):220-222.)